BTS_Tests.ttcn: extend f_unitdata_mo() with tolerance parameters

The ability to control which kinds of RSL messages are permitted
in a given use case (and which are not) makes f_unitdata_mo()
function much more flexible.

Let's introduce two new parameters, one of which would make its
'alt' statement tolerant to SACCH messages (Measurement Reports),
and another to other kinds of RSL messages.

Please note that the original behaviour of f_unitdata_mo()
went untouched, so it's still tolerant to any other messages.

Change-Id: I15782ec93d68a0dc54b2ed7a84cb70d780ba0ce1
1 file changed